212525652801 has 32 divisors (see below), whose sum is σ = 353891478528. Its totient is φ = 110214786240.

The previous prime is 212525652797. The next prime is 212525652803. The reversal of 212525652801 is 108256525212.

It is a happy number.

It is not a de Polignac number, because 212525652801 - 2² = 212525652797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212525652801.

It is not an unprimeable number, because it can be changed into a prime (212525652803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 648070 + ... + 919263.

It is an arithmetic number, because the mean of its divisors is an integer number (11059108704).

Almost surely, 2^212525652801 is an apocalyptic number.

212525652801 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

212525652801 is a deficient number, since it is larger than the sum of its proper divisors (141365825727).

212525652801 is a wasteful number, since it uses less digits than its factorization.

212525652801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567941.

The product of its (nonzero) digits is 96000, while the sum is 39.

The spelling of 212525652801 in words is "two hundred twelve billion, five hundred twenty-five million, six hundred fifty-two thousand, eight hundred one".